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31. 发明授权

US07280269B2 Fast dynamic gain control in cascaded Raman fiber amplifiers 有权
公开(公告)号：US07280269B2
公开(公告)日：2007-10-09
申请号：US11424308
申请日：2006-06-15
申请人： Xiang Zhou , Martin Birk
发明人： Xiang Zhou , Martin Birk
IPC分类号： H01S4/00 , H04B10/12
CPC分类号： H01S3/06758 , H01S3/005 , H01S3/06754 , H01S3/06766 , H01S3/0677 , H01S3/094096 , H01S3/10007 , H01S3/10015 , H01S3/302 , H01S2301/04 , H01S2301/06 , H04B10/2916 , H04B10/2942 , H04B10/296
摘要： The present invention provides methods and apparatuses for controlling a gain of a bidirectionally-pumped Raman fiber amplifier having both forward optical pumps and backward optical pumps. The overall gain is controlled by adjusting the forward optical pumps, while the power levels of the backward optical pumps are essentially fixed. Gain circuitry operates in an opened loop configuration and uses a predetermined function relating a power variation of at least one wavelength region with a pump power adjustment for at least one forward optical pump. Two approximate linear relationships between the input signal power variations and the required pump power adjustments are utilized in controlling the Raman fiber amplifier. Each approximate linear relationship includes at least one linear coefficient that relates a power variation for a specific wavelength region and a power adjustment of a specific Raman pump.

32. 发明授权

US07244230B2 Computer aided diagnostic assistance for medical imaging 有权
标题翻译：计算机辅助诊断辅助医学成像
公开(公告)号：US07244230B2
公开(公告)日：2007-07-17
申请号：US10702721
申请日：2003-11-06
申请人： Bhavani Duggirala , Diane S. Paine , Dorin Comaniciu , Arun Krishnan , Xiang Zhou
发明人： Bhavani Duggirala , Diane S. Paine , Dorin Comaniciu , Arun Krishnan , Xiang Zhou
IPC分类号： A61B5/00 , A61B8/00
CPC分类号： A61B8/56 , A61B8/00 , A61B8/4427 , A61B8/485 , A61B8/565 , G06F19/00 , G06T7/0012 , G06T2207/30004 , G16H50/20 , Y02A90/22 , Y02A90/26 , Y10S128/925
摘要： Various attributes for medical CAD analysis used alone or in combination are disclosed, including: (1) using medical sensor data and context information associated with the configuration of the medical system to provide recommendations for further acts to be performed for more accurate or different diagnosis, (2) recommending further acts to be performed and providing an indication of the importance of the further act for further diagnosis, (3) distributing the computer-assisted diagnosis software and/or database over multiple systems, and (4) transmitting patient data to a remote system for CAD diagnosis and using the results of the CAD diagnosis at the remote facility.
摘要翻译：公开了用于单独或组合使用的医疗CAD分析的各种属性，包括：（1）使用与医疗系统的配置相关联的医疗传感器数据和上下文信息来提供用于执行更准确或不同诊断的进一步行为的建议，（2）推荐进一步的行为，并提供进一步诊断的进一步行动的重要性的指示，（3）通过多个系统分发计算机辅助诊断软件和/或数据库，以及（4）将患者数据发送到用于CAD诊断的远程系统，并在远程设施中使用CAD诊断的结果。

33. 发明申请

US20070109624A1 Fast Dynamic Gain Control in Cascaded Raman Fiber Amplifiers 有权
公开(公告)号：US20070109624A1
公开(公告)日：2007-05-17
申请号：US11424308
申请日：2006-06-15
申请人： Xiang Zhou , Martin Birk
发明人： Xiang Zhou , Martin Birk
IPC分类号： H01S3/00
CPC分类号： H01S3/06758 , H01S3/005 , H01S3/06754 , H01S3/06766 , H01S3/0677 , H01S3/094096 , H01S3/10007 , H01S3/10015 , H01S3/302 , H01S2301/04 , H01S2301/06 , H04B10/2916 , H04B10/2942 , H04B10/296
摘要： The present invention provides methods and apparatuses for controlling a gain of a bidirectionally-pumped Raman fiber amplifier having both forward optical pumps and backward optical pumps. The overall gain is controlled by adjusting the forward optical pumps, while the power levels of the backward optical pumps are essentially fixed. Gain circuitry operates in an opened loop configuration and uses a predetermined function relating a power variation of at least one wavelength region with a pump power adjustment for at least one forward optical pump. Two approximate linear relationships between the input signal power variations and the required pump power adjustments are utilized in controlling the Raman fiber amplifier. Each approximate linear relationship includes at least one linear coefficient that relates a power variation for a specific wavelength region and a power adjustment of a specific Raman pump.

34. 发明申请

US20070071313A1 Method for performing image based regression using boosting 有权
标题翻译：使用升压进行基于图像的回归的方法
公开(公告)号：US20070071313A1
公开(公告)日：2007-03-29
申请号：US11372782
申请日：2006-03-10
申请人： Shaohua Zhou , Bogdan Georgescu , Xiang Zhou , Dorin Comaniciu
发明人： Shaohua Zhou , Bogdan Georgescu , Xiang Zhou , Dorin Comaniciu
IPC分类号： G06K9/62
CPC分类号： G06K9/6256 , G06K2009/00322 , G06K2209/05
摘要： A method for performing image based regression using boosting to infer an entity that is associated with an image of an object is disclosed. A regression function for a plurality of images is learned in which for each image the associated entity is known. The learned regression function is used to predict an entity associated with an image in which the entity is not known.
摘要翻译：公开了一种使用增强来执行基于图像的回归的方法来推断与对象的图像相关联的实体。学习用于多个图像的回归函数，其中对于每个图像，相关联的实体是已知的。学习的回归函数用于预测与实体不知道的图像相关联的实体。

35. 发明申请

US20070058242A1 Fast Dynamic Gain Control in an Optical Fiber Amplifier 有权
标题翻译：光纤放大器中的快速动态增益控制
公开(公告)号：US20070058242A1
公开(公告)日：2007-03-15
申请号：US11550258
申请日：2006-10-17
申请人： Xiang Zhou , Martin Birk
发明人： Xiang Zhou , Martin Birk
IPC分类号： H01S3/00 , H04B10/12
CPC分类号： H01S3/10007 , H01S3/06754 , H01S3/10015 , H01S3/302 , H04B10/2916 , H04B10/2942 , H04B10/296
摘要： The present invention provides methods and apparatuses for controlling a gain of an optical fiber amplifier. Gain circuitry operates in an opened loop configuration and uses a predetermined function relating a power variation of at least one wavelength region with a pump power adjustment for at least one optical pump. Two approximate linear relationships between the input signal power variations and the required pump power adjustments are utilized in controlling the Raman fiber amplifier. Each approximate linear relationship includes at least one linear coefficient that relates a power variation for a specific wavelength region and a power adjustment of a specific Raman pump. The dynamic gain control technique is applicable to an Erbium-doped fiber/waveguide amplifier. Also, a dynamic gain control technique controls a backward-pumped Raman amplifier, in which the power variation is determined at one geographical location and the optical pumps are controlled at another geographical location.
摘要翻译：本发明提供了用于控制光纤放大器的增益的方法和装置。增益电路以开环配置工作，并且使用将至少一个波长区域的功率变化与用于至少一个光泵的泵功率调整相关联的预定功能。输入信号功率变化与所需泵浦功率调整之间的两个近似线性关系用于控制拉曼光纤放大器。每个近似线性关系包括至少一个线性系数，其涉及特定波长区域的功率变化和特定拉曼泵的功率调整。动态增益控制技术适用于掺铒光纤/波导放大器。此外，动态增益控制技术控制反向泵浦拉曼放大器，其中在一个地理位置确定功率变化，并且将光泵控制在另一地理位置。

36. 发明申请

US20060239552A1 System and method for using learned discriminative models to segment three dimensional colon image data 有权
公开(公告)号：US20060239552A1
公开(公告)日：2006-10-26
申请号：US11349793
申请日：2006-02-08
申请人： Zhuowen Tu , Xiang Zhou , Dorin Comaniciu , Luca Bogoni , Adrian Barbu
发明人： Zhuowen Tu , Xiang Zhou , Dorin Comaniciu , Luca Bogoni , Adrian Barbu
IPC分类号： G06K9/34
CPC分类号： G06K9/4638 , G06K9/38 , G06K2209/05 , G06T7/11 , G06T2200/04 , G06T2207/10081 , G06T2207/20081 , G06T2207/20156 , G06T2207/30028
摘要： A system and method for using learned discriminative models to segment a border of an anatomical structure in a three dimensional (3D) image is disclosed. A discriminative probability model is computed for each voxel in the 3D image. Thresholding is performed on each discriminative probability model. One or more two dimensional (2D) slices of the thresholded 3D image along X-Y planes are obtained. Seed regions are selected in the 2D slices. Morphological region growing is performed on the selected seed regions. An initial 3D segmentation is obtained. Boundary evolution is performed on the initial 3D segmentation. The segmented anatomical structure is removed. in the original 3D image.

37. 发明申请

US20060187538A1 Fast dynamic gain control in an optical fiber amplifier 有权
公开(公告)号：US20060187538A1
公开(公告)日：2006-08-24
申请号：US11273868
申请日：2005-11-15
申请人： Xiang Zhou , Martin Birk
发明人： Xiang Zhou , Martin Birk
IPC分类号： H01S3/00
CPC分类号： H01S3/302 , H01S3/06754 , H01S3/094096 , H01S3/10015 , H01S2301/04 , H04B10/2916 , H04B10/296
摘要： The present invention provides methods and apparatuses for controlling a gain of an optical fiber amplifier. Gain circuitry operates in an opened loop configuration and uses a predetermined function relating a power variation of at least one wavelength region with a pump power adjustment for at least one optical pump. Two approximate linear relationships between the input signal power variations and the required pump power adjustments are utilized in controlling the Raman fiber amplifier. Each approximate linear relationship includes at least one linear coefficient that relates a power variation for a specific wavelength region and a power adjustment of a specific Raman pump. The dynamic gain control technique is applicable to an Erbium-doped fiber/waveguide amplifier. Also, a dynamic gain control technique controls a backward-pumped Raman amplifier, in which the power variation is determined at one geographical location and the optical pumps are controlled at another geographical location.

38. 发明申请

US20050185826A1 Method and system for multi-modal component-based tracking of an object using robust information fusion 失效
标题翻译：使用鲁棒信息融合的多模态组件跟踪对象的方法和系统
公开(公告)号：US20050185826A1
公开(公告)日：2005-08-25
申请号：US11058784
申请日：2005-02-16
申请人： Bogdan Georgescu , Xiang Zhou , Dorin Comaniciu , R. Rao
发明人： Bogdan Georgescu , Xiang Zhou , Dorin Comaniciu , R. Rao
IPC分类号： G06K9/64 , G06T7/20 , G06K9/00
CPC分类号： G06K9/3216 , G06K9/6206 , G06T7/215 , G06T7/269
摘要： A system and method for tracking an object is disclosed. A video sequence including a plurality of image frames are received. A sample based representation of object appearance distribution is maintained. An object is divided into one or more components. For each component, its location and uncertainty with respect to the sample based representation are estimated. Variable-Bandwidth Density Based Fusion (VBDF) is applied to each component to determine a most dominant motion. The motion estimate is used to determine the track of the object.
摘要翻译：公开了一种跟踪对象的系统和方法。接收包括多个图像帧的视频序列。维护对象外观分布的基于样本的表示。一个对象被分成一个或多个组件。对于每个组件，估计其相对于基于样本的表示的位置和不确定性。基于可变带宽密度的融合（VBDF）应用于每个组件以确定最主要的运动。运动估计用于确定对象的轨迹。

39. 发明授权

US09450697B2 Apparatus and method for distributed compensation of narrow optical filtering effects in an optical network 有权
标题翻译：光网络中窄光滤波效果的分布式补偿装置及方法
公开(公告)号：US09450697B2
公开(公告)日：2016-09-20
申请号：US13310367
申请日：2011-12-02
申请人： Xiang Zhou
发明人： Xiang Zhou
IPC分类号： H04B10/67 , H04J14/02
CPC分类号： H04J14/0212 , H04J14/0221
摘要： The present disclosure describes a reconfigurable optical add-drop multiplexer including a wavelength selective switch configured to filter wavelengths of an optical signal; and an optical equalizer, coupled to the wavelength selective switch, configured to equalize the optical signal to mitigate optical filtering effects caused by the wavelength selective switch.
摘要翻译：本公开描述了一种可重新配置的光分插复用器，包括配置成滤波光信号波长的波长选择开关; 以及耦合到所述波长选择开关的光学均衡器，被配置为均衡所述光信号以减轻由所述波长选择开关引起的光学滤波效应。

40. 发明授权

US09302392B2 Method and device for controlling mechanical articulated arm 有权
标题翻译：用于控制机械铰接臂的方法和装置
公开(公告)号：US09302392B2
公开(公告)日：2016-04-05
申请号：US13807220
申请日：2011-06-22
申请人： Xiaogang Yi , Xiang Zhou , Antao Chen , Qiulian Deng
发明人： Xiaogang Yi , Xiang Zhou , Antao Chen , Qiulian Deng
IPC分类号： G05B15/00 , G05B19/00 , B25J9/16
CPC分类号： B25J9/1694 , B25J9/16 , B25J9/1633 , B25J9/1638 , G05B2219/39176
摘要： A control method of a mechanical articulated arm, wherein at least two tilt sensors are arranged in different positions of the articulated arm, comprising: calibrating zero positions of tilt sensors when articulated arm does not have elastic deformation, setting position of tail end of articulated arm as point P and point P′ before and after elastic deformation of articulated arm, and selecting point R on the articulated arm; detecting angles of two different positions of the articulated arm with the tilt angles before and after the elastic deformation, obtaining the angle offset Δθ of the articulated arm due to the elastic deformation, and calculating the length parameter La and the angle parameter θa of the articulated arm after deformation based on the lengths of OR and RP′; and controlling the action of the articulated arm according to position parameters Xp′ and Yp′ (to the point P′) obtained according to length parameter La and angle parameter θa.
摘要翻译：一种机械铰接臂的控制方法，其中至少两个倾斜传感器布置在铰接臂的不同位置，包括：当铰接臂不具有弹性变形时，校准倾斜传感器的零位置，铰接臂的尾端的设置位置作为关节臂弹性变形前后的点P和点P'，并在铰接臂上选择点R; 检测关节臂的两个不同位置的角度与弹性变形之前和之后的倾斜角度，获得角度偏移＆Dgr; 由于弹性变形，并根据OR和RP'的长度，计算出变形后关节臂的长度参数La和角度参数; a; 并且根据根据长度参数La和角度参数获得的位置参数Xp'和Yp'（到点P'）来控制铰接臂的动作; a。

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